﻿/************************************************************************

  Extended Silverlight Toolkit – SAMPLE CODE

  Copyright (C) 2010-2012 Xceed Software Inc.

  This program is provided to you under the terms of the Microsoft Public
  License (Ms-PL) as published at http://extendedsilverlight.codeplex.com/license

  Please purchase a commercial version of this toolkit if you are using
  it in a commercial product. The commercial versions support the project,
  and also include more features for each control, priority support,
  source code, updates, removed watermark, and a proprietary license.

  Visit http://xceed.com and follow @datagrid on Twitter.

  **********************************************************************/

using System;
using System.Globalization;
using System.Windows.Data;

namespace Xceed.Utils.Silverlight.ListBox.Samples
{
  public class UnitsInStockToOpacityConverter : IValueConverter
  {
    public double DefaultOpacity
    {
      get;
      set;
    }

    public double AlternateOpacity
    {
      get;
      set;
    }

    #region IValueConverter Members

    public object Convert( object value, Type targetType, object parameter, CultureInfo culture )
    {
      var unitsInStock = ( int )value;

      if( unitsInStock == 0 )
      {
        return AlternateOpacity;
      }
      else
      {
        return DefaultOpacity;
      }
    }

    public object ConvertBack( object value, Type targetType, object parameter, CultureInfo culture )
    {
      //Should never happen
      throw new NotImplementedException();
    }

    #endregion
  }
}
